Me... I'm thinking the 16-35mm and 70-200mm f4 would make a perfect travel pair. Throw in a 50mm (f1.4G or f1.8G) or the new 24-85mm VR and a D600 and you have a really nice full-frame travel kit. That's what I'm aiming for.

I have the 70-200mm VRI (had it for years) and I just can't part with it. I love that lens too much!